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no return fuel line...will an FMU work???

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Old 06-05-2002, 06:09 AM
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Default no return fuel line...will an FMU work???

Just pondering, helping a friend out with his custom turbo on a 7th gen civic...he's already set up all the piping, and is just wondering about the fuel, there is no return on the fuel line, so would the 8:1 FMU cause the car to run too rich???
Old 06-05-2002, 06:27 AM
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Default Re: no return fuel line...will an FMU work??? (B16C-RXed)

^^^
Old 06-05-2002, 06:27 AM
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Default Re: no return fuel line...will an FMU work??? (B16C-RXed)

If it is a returnless fuel system you cannot use an fmu!
Old 06-05-2002, 06:40 AM
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Default Re: no return fuel line...will an FMU work??? (smackdown-lude)

What can he do???
Old 06-05-2002, 06:49 AM
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Default Re: no return fuel line...will an FMU work??? (B16C-RXed)

an apex vafc that is his only option or any other piggy back system. he should ask the people at www.2k1civic.com they have already figured this kind of **** out


[Modified by CovertFI, 9:51 AM 6/5/2002]
Old 06-05-2002, 07:21 AM
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Default Re: no return fuel line...will an FMU work???

Well my Camry has the same crappy fuel setup. You can use a paxton regulator and then create a return line. Its boost referenced but only 1:1, dont know how much that will help. The return lines arent hard to make, especially if your fuel sending unit is the same as a car with a return line (maybe one of the other models) They also sell a part that taps a return line into your gas tank. It attaches to the fill tube, its made by MOROSO and JEGS carries them. I would convert the system to have a return line, i did a lot of research on this and that seemed to be the best solution.

Good luck!
Old 06-05-2002, 07:53 AM
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Default Re: no return fuel line...will an FMU work??? (B16C-RXed)

What can he do???
the mf2 additional injector setup that fmax uses will work without a return line.
Old 06-05-2002, 11:42 AM
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Default Re: no return fuel line...will an FMU work??? (supergreenSol)

just go piggy back and larger injectors
Old 06-05-2002, 01:05 PM
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Default Re: no return fuel line...will an FMU work??? (supergreenSol)

to all, hey thanks alot...it should help...
Old 06-05-2002, 03:02 PM
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Default Re: no return fuel line...will an FMU work??? (B16C-RXed)

I don't think I would go to any great lengths to modify a car for the sole purpose of adding a FMU... considering FMUs are worthless in the first place. Put some larger injectors (370s or bigger) and tune them in with a VAFC or if he wants to do it RIGHT, get a Hondata or AEM EMS or Haltech or.....
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